Whooping Cough

Whooping cough, a bacterial infection in childhood is caused by the bacterium Bordetalla pertussis. The bacteria is highly infectious and is found in the mouth, nose and throat of an infected child. Infection is spread by inhalation of airborne drops coughed out by the infected persons. It can be very serious for children under 2 years of age.  But there is effective vaccination against this dissease so the incidence and severity of the disease has been lessened.  

The disease begins with a cold and a mild cough and effects the respiratory tract and the lungs. After this,  continual coughing bouts which lasts up to one minute sets in. At the end of each coughing bout, the child draws in the breath with a characteristic whooping sound. Coughing attacks may occur up to 40 times a day, and is often worse at night. After about two weeks the symptoms begin to subside although the cough may persist for 6-10 weeks. 

Symptoms 
The incubation period (the time between contracting the infection and the appearance of the main symptoms) of the disease is usually one to three weeks. The early symptoms of whooping cough are similar to a cold. Other symptoms may include :  

• A runny nose

• Sore, watery eyes

• Poor appetite 

• Coughing bouts

• Whooping sound when breathing in between coughing bouts

• Fever & diarrhoea 

• Lips, tongue, and nails may turn blue during coughing spells

• Nose bleed & vomiting after the cough

Adverse effects
Whooping cough attacks can be distressing for both the child and parents. Complications from whooping cough may include damage to the tiny air sacs and airways in the lungs which may lead to asthma, ear infections, broncho - pneumonia or convulsions. Other serious complications include rupture of blood vessels in the brain (cerebral haemorrhage) or eye, retinal detachment caused violent coughing, tuberculosis and inflammation of the brain. Severe complications can result in permanent brain damage or death.

Diagnosis
The diagnosis is usually made from the symptoms and in case of contact with a person suffering from whooping cough. Swabs from the nose and throat are taken for analysis for confirmation of the disease.

Treatment
Most cases of whooping cough require no specific treatment. Antibiotics are not recommended except for infants and patients who have other complications. Treatment is usually by means of bed rest, pain relief and plenty of drinks. The patient should be kept isolated from others. Very severe cases should be treated in hospital. 

Whooping  cough can be prevented by means of vaccination. This is a combined vaccination against diphtheria, pertussis (whooping cough), tetanus and hib (dpt/hib) which is usually given at the age of 2, 3 and 4 months. There is also a booster at 18 months and at 4-6 years of age. The vaccination may cause fever, redness and swelling in the injected area which may last upto one or two days. Rarely whooping cough can occur in spite of taking the vaccination. But these attacks will be mild.

It is advisable that all children should be vaccinated against whooping cough, as it is important to prevent this dangerous disease.

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